Final answer:
The correct answer is d. Business unit manager. They are in charge of a revenue-producing unit, such as a store or product line.
Step-by-step explanation:
The correct answer is d. Business unit manager. A business unit manager is a manager who is in charge of a clearly identifiable revenue-producing unit, such as a store, business unit, or product line. They are responsible for overseeing the operations and profitability of the unit they are assigned to.